By the architect W. A. Gibbon of the architectural practice of Crickshank and Seward.  Pevsner describes it as, "A low three-storey reinforced concrete block, with at the western end a High Voltage Laboratory, a stark box clad in ribbed aluminium."  On the grass beside the building is a sculpture called "The Insulator Family" composed of three high-voltage ceramic insulators.  It was supplied by Allied Insulators of Stoke-on-Trent and installed in 1987.